1. Compact in-vacuum gamma-ray spectrometer for high-repetition rate PW-class laser-matter interaction
- Author
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Fauvel, G., Tangtartharakul, K., Arefiev, A., De Chant, J., Hakimi, S., Klimo, O., Manuel, M., McIlvenny, A., Nakamura, K., Obst-Huebl, L., Rubovic, P., Weber, S., and Condamine, F. P.
- Subjects
Physics - Plasma Physics - Abstract
With the advent of high repetition rate laser facilities, novel diagnostic tools compatible with these advanced specifications are required. This paper presents the design of an active gamma-ray spectrometer intended for these high repetition rate experiments, with particular emphasis on functionality within a PW level laser-plasma interaction chamber's extreme conditions. The spectrometer uses stacked scintillators to accommodate a broad range of gamma-ray energies, demonstrating its adaptability for various experimental setups. Additionally, it has been engineered to maintain compactness, electromagnetic pulse resistance, and ISO-5 cleanliness requirements while ensuring high sensitivity. The spectrometer has been tested in real conditions inside the PW-class level interaction chamber at the BELLA center, LBNL. The paper also outlines the calibration process thanks to a $^{60}$Co radioactive source.
- Published
- 2023